I'itrdiiliscoicles, Nicippe 225 



witb 6, botli sleiider. Maxillipeds, inner plates verv small, outer on sraall 

 base, sbort, narrow, spinulose; 2'^ and 3*^ joiuts of palp long, tinger long, 

 witb setules on inner margin. Gnatbopods 1 and 2 similar, simple, 5*^^ Joint 

 robust, fusiform, 6*'' slender, finger friuged witb setules. Peraeopods 1—5 

 slender, long, üropod 2, rami unequal; uropod 3, rami foliaceous. Telson 

 deeply cleft. 



1 species. 



1. P. tenellus Stebb. 1888 P. t., T. Stebbing in: Rep. Voy. Challenger, r. 29 

 p. 1725 I 1897 F. t., T. Stebbing in: Tr. Linn. Soc. London, ser. 2 iil p. 38 t. 12 | 1893 

 Fardalisca abyssi (part.), A. Della Valle in : F. Fl. Neapel, v. 20 p. 692. 



Pleon Segments 1 — 3 perhaps witb dorsal denticle. Head, rostrum acute. 

 Antenna 1, l'*'^ Joint stout, 2*^ louger, 3^^ balf as long as 2^^, flagellum with 

 more tban 13 joints, P* much tbe longest, accessory flagellum witb more tban 



7 joints, 1^* as long as P^ of primary. Antenna 2, ultimate and penultimate joints 

 of peduncle long, ultimate tbe sborter, flagellum balf as long as peduucle, 1 2-jointed. 

 Gnatbopods 1 and 2 spinöse; sbort plumose spines on bind margin of b^^ and 

 6^'^ joints, beginning at narrowed distal end of 5*'^ Setules on finger's 

 inner margin very small. Peraeopods 1 and 2, 5*1' Joint longer tban 4'^^'' or 6^^; 

 peraeopod 2 ratber longer tban peraeopod 1, and baving about a dozen blunt 

 spines on bind margin of 6^^ Joint. Peraeopod 3, 2'^ Joint very sligbtly 

 expanded, 4*'^ tbe longest, finger slender, acute. Peraeopod 4 like 3*^, but 

 joints ratber longer. Peraeopod 5 considerably longer tban 4^^, 2^ Joint 

 expanded above, narrowing downward, 4:^^ Joint very long. Brancbial vesicle 

 of tbis limb small, narrowly oval. Telson mucb longer tban broad, cleft 

 % lengtb, debiscent, witb a spinule at eacb apex and a setule on eacb 

 lateral margin. L. 8 mm. 



South-Pacific (lat. 37» S., long. 83» W.). Depth 3246 m. 



4. Gen. Nicippe Bruz. 



1859 Nicippe (Sp. un.: N. tumida), E.. M. Bruzelius in: Svenska Ak. Handl., 

 n. ser. v. 3 nr. 1 p. 99 \ 1893 A^., G. 0. Sars, Crust. Norway, v. 1 p. 409 | 1893 A^. (part.), 

 A. Della Valle in: F. Fl. Neapel, v. 20 p. 657. 



Head with very small rostral projection, lateral corners produced. 

 Side-plates very sballow, not overlapping, 4^^ not emarginate, 5**^ with front 

 lobe tbe deeper. Antenna 1 in 9 mucb longer tban antenna 2, accessory 

 flagellum small. Antenna 1 in d ratber sborter tban antenna 2, 1*** Joint of 

 flagellum long, bearded, 1^*^ Joint of accessory flagellum long, laminar. Upper 

 lip moderately bilobed. Lower lip, outer lobes small, separated by a singie 

 inner lobe. Mandible, cutting edge broad, dentate, accessory plate broad, 

 only present on left mandible, spine-row witb small spines, 3*^ Joint of palp 

 not mucb sborter tban 2<^. Maxiila 1, inner plate with 1 seta, outer witb 



8 (?) spines, palp with 9 spine-teetb on expanded apex. Maxiila 2, inner 

 plate a little sborter tban outer, botb slender. Maxillipeds, inner plates 

 conical, small but not rudimentary, outer fringed witb spines, narrow, not 

 reacbing end of palp's 1^* Joint, palp very large, 2'^ Joint long, oval, 3** not 

 much sborter, finger spinulose on inner margin. Gnatbopods 1 and 2, 5**^ Joint 

 ratber sbort, distal expansion densely setose, ß*^' long oval, finger long, 

 curved, acute. Peraeopods 1 and 2, 4.^^ and ö*'' joints equal, sligbtly widened, 

 6*1' ratber longer. Peraeopods 3 — 5 successively longer, slender, 2*^ Joint 

 oblong, little expanded, finger stiliform. üropods 1 and 2 streng, spinöse, outer 



Das Tierreich. 21. Lief.: T. R. R. Stebbing, Amphipoda I. 15 



